Wrench



G. C. PETERS.

WRENCH.

APPLICATION FILED JUNE 29. 1921.

Patented Feb. 14, 1922.

UNITED STATES GEORGE C. PETERS, OE LOSANGELES, CALIFORNIA.

PATENT OFFIQE.

WRENCH.

' Application filed June as,

T 0 all whom it may concern:

Be it knownthat I, Gnonen C. Prirnns, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented certain new and useful Improvements inWrenches, of which the following is a specification.

This invention relates to wrenches, and more particularly to adjustableratchet wrenches. r

The primary object of the invention resides in the construction of anovel and improved ratchet wrench capable of a multi plicity of useswhereby a stationary frame is adapted to receive a movable yoke andhaving a. plate designed to accommodate a movable jaw member so as toengage a part to be turned such as a nut or pipe for instance.

Another object of the invention relates to a ratchet wrench affordingprovision for adjusting a yoke with respect to a stationary frame andplate so as to draw one toward the other to engage a part such as a nutor pipe, including a spring pressed jaw carried by said plate andadapted to engage the said nut or pipe in different positions in orderto actuate the same.

Another and very important object of the invention is the provision ofan adjustable ratchet wrench of the type above set forth in which theparts are extremely simple in construction, easily assembled, rigid anddurable, highly efficient in operation, practical and capable of beingmanufactured at a very low cost whereby its commercial possibilities aregreatly enhanced.

With these objects in view and others which will be manifest andsuggested as the purpose and nature of my invention are revealed in thefollowing specification and drawing wherein I have shown a preferredembodiment thereof,

Figure 1 is a side view showing the inven tion, and,

Fig. 2 is a front view of the same.

Fig. 3 is a similar View to Fig. 2 with the front portion of the frameremoved, showing the invention when applied for actuating a nut.

Fig. 4: is a sectional View taken on the line 44 of Fig. 2.

Fig. 5 is a fragmentary portion of the stationary plate carried by theyoke.

Referring now to the drawings wherein like parts designatecorrespondingv parts in Specification of Letters Patent. -P2,te11tedFeb. 14, 1922.

a shank 12 disposed within the handle portion'of the wrench and threadedas at 13 for cooperation with a knurled nut 14 which extends outwardlythrough apertures 15 in the sides 6 and 7 of the frame, as clearly shownby Figs. land 4 of the drawing.

The upper ends of the arms 10, 11 of the yoke terminate in a U-shapedhead 16 which is adapted to engage a part such as a nut or pipe forinstance, when it is adjusted with respect to the frame above referredto. Between the arms 10, 11, I have also provided a plate 17 secured bysuitable fastening elements 19 to the frame 5. The U-shaped portion 16of the yoke is formed with shoulders 18 which engage the top edge of thearms 6, 7 of the frame to limit the inward movement of the yoke when thenut 14 is rotated. The upper portion of the plate 17 is provided with aslot 20 terminating in a substantially circular recess 21 to receive amovable jaw 22, the upper object engaging portion of the jaw 22 beingprovided with a sharpened, enlarged extension 28 adapted to engage thepart to be turned, as is well understood.- Secured to the triangularshaped'arm 24c formed by the slot 20 is secured a suitable leaf spring25 normally bearing against the movable jaw 22 thus permitting the sameto be oscillated so as to engage the nut or pipe to be actuated when thewrench is being used.

By reason of this construction, it will be readily apparent that as theknurled nut 14 is turned on the threaded shank of the yoke, the yokewill be moved with respect to the said frame since the knurled nutcannot move in the recesses 15 of the frame and thus the head 16 will bedrawn into engagement with the part to be turned which will also be incontact with the enlarged portion 23 of the movable jaw above referredto.

In the accompanying drawings, I have illustrated my invention embodiedin one form by way of example, and which in practice has been found tobe highly satisfactory in obtaining the desired results. It will beobvious however that other embodiments may. be adopted and that variouschanges'in the details of construction may be resorted to by thoseskilled in the art without departing from the spirit and scope of theinven-.

tion. It is furthermore understood that the invention is not necessarilylimited or restricted to the precise elements shown except insofar assuch limitations are specified in the subject matter being claimed.

Having shown and described my invention, what I now claim as new anddesire to secure by Letters Patent of the U. S. is

1. A wrench of the class described comprising a U-shaped frame, thesides of said frame being bent inwardly to provide a hand gripping end,a recessed plate attaohedto said frame, means carried by said plate forengaging a part to be actuated, a yoke slidably mounted between the armsof the frame and said plate, and means for adjusting said yoke withrespect to the frame.

2. A wrench of'the class described comprising a frame, the sides of saidframe having recesses therein and bent inwardly to provide a handlegripping end, a recessed plate attached to one of the sides of theframe, a spring pressed movable jaw seated within said recess of theplate pivotally mounted to engage a part toibe actuated, a yokepositioned between the arms of the frame and having a threaded shankextending within the handle portion thereof, and a knurled nut on saidthreaded shank extending through the recesses of the arms whereby theyoke may be adjusted with re spect to the frame to engage a part to beactuated.

In testimony whereof, I affix my signature hereto.

GEORGE C. PETERS.

